Why Use An Oil Purifier Instead Of Only Equipment Filters→
Many hydraulic systems rely only on built-in small filter elements. However, this approach has significant inherent limitations that can compromise system performance and longevity.
- Built-in filters have limited dirt holding capacity due to small size and limited filtration area
- Hydraulic shock during equipment reversal can dislodge captured particles, reducing effective filtration efficiency
- Oil cleanliness at delivery is often insufficient ?new oil typically NAS 9?2, heavy industry NAS 5?
- Bypass filtration with independent pump systems provides stable pressure and larger filtration area
- Oil purifiers offer better particle adhesion and continuous 24/7 operation capability
NAS Classification at Delivery
SINFT Oil Purifier — 15 Series
Complete range from portable maintenance units to ultra-high voltage transformer oil treatment systems
Portable Oil Purifier Cart
Mobile Filtration System | 20/50/100 L/min | ABB Motor + Helical Gear Pump
Portable Cart with Particle Counter
Mobile Filtration System | Real-time NAS1638/ISO4406 Display | Built-in Laser Counter
Built-in laser particle counter displays real-time oil cleanliness NAS1638, ISO4406, GJB 420A codes.
Coalescence Dehydration Filter
Mobile / Fixed Filtration | 50-220 L/min | Coalescence + Vacuum Dehydration
Two-Stage High Vacuum Oil Filter
Mobile / Fixed Type | 1800-18000 L/h | ≥110kV Transformer Oil | UHV 500kV+ Grid
Two-stage vacuum degassing and dehydration for ultra-high voltage power transformer oil treatment.
High-Efficiency Vacuum Oil Filter
Mobile / Fixed Type | ≤110kV Equipment | Trace Moisture & Gas Removal
Charge Mixed Flow Sub-Micron Filtration
Mobile / Fixed Type | 20/50 L/min | NAS Level 4 | Phosphate Ester Specialist
Ion Trap Sub-Micron Filtration Device
Mobile / Fixed Type | Dry Ion Exchange Resin | Acid & Metal Ion Removal
Membrane Stack Filtration Device
Mobile / Fixed Type | 3μm Precision | DN6-DN150 Pipeline | Membrane + Water Separation
Membrane stack combined with water separation filter for high-precision industrial filtration.
Hydraulic Pipeline Pulse Flushing Device
Mobile / Fixed Type | DN6-DN150 | Servo Pulse Turbulent Flush
Hydraulic Oil Purification & Detection Device
Mobile / Fixed Type | Real-time Oil Quality Monitoring | Cleanliness + Water Activity
Real-time oil quality monitoring for cleanliness, water activity, and dissolved water content.
Movable Box-Type Integrated Filter Device
Mobile Filtration System | Built-in Dry-Heating Heater | Auto Temperature Control
Mobile tank + filtration system with built-in dry-heating heater. Automatic temperature control.
EH Bypass Regeneration Filtration Device
Fixed Filtration System | 4 L/min | FKM Seals + SS Pipeline | Phosphate Ester Specialist
Alternative Solutions
Direct replacements for international brands ?better pricing, faster delivery, equal performance
CJC Oil Purifier Replacement
Direct compatible replacements for all CJC series oil purifiers. Equal efficiency with corrosion-resistant stainless steel piping and Viton seals. Better pricing and faster delivery worldwide.
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Triple R Oil Purifier Replacement
SINFT offers equivalent alternatives for all Triple R oil purifier models. Enhanced local technical support, quick parts supply, and competitive pricing for industrial applications.
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Oil Cleanliness Particle Counter
Laser particle counting instrument displays real-time NAS 1638, ISO 4406, and GJB 420A cleanliness codes. Essential for verifying oil purity and monitoring system health on-site.
View MoreWhy Choose SINFT Oil Purifiers?
SINFT oil purifiers provide superior filtration performance with independent systems that overcome the limitations of built-in filters.
How Oil Purifiers Work
Understanding the core technologies behind effective oil filtration
Vacuum Oil Filtration Principle
- Vacuum dehydration: Negative pressure lowers water boiling point for rapid evaporation
- Multi-stage filtration: Pre-filter removes large particles, fine filter captures micro-particles
- Precision可达NAS 4-6: Cleanliness level suitable for precision hydraulic systems
Result: Water Content from 500ppm → Below 10ppm
Vacuum dehydration can reduce water content from 500ppm to less than 10ppm in a single pass.
Coalescence Dehydration Principle
- Coalescing effect: Small water droplets merge into larger ones
- Demulsification: Breaks oil-water emulsion structure
- Gravity separation: Water settles to bottom and is automatically drained
- Suitable for: Hydraulic oils, lubricants, turbine oils with emulsified water
Result: Emulsified Oil → Clean Oil + Separated Water
Coalescence technology effectively handles oils that are difficult to separate with simple filtration.
SINFT Industrial Filter Products
For a more comprehensive product selection, please refer to our full product catalog to help you make an efficient choice:
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